I'm trying to re-format an HTML page produced by submitting a <form method=POST>.  I have a simple dummy form that uses javascript to submit it in an iframe, and my data arrives as expected,  The problem is I want to re-format the data, using a CSS or XSL stylesheet.  I have no control over the delivered HTML. Is there some otther approach I could take (short of creating a module, which is way over my head).

I am not sure how the browser rules apply, but you might try adding style elements to your main page, however, I believe that an IFrame is rendered in an isolated manner so your styles will not affectit.

It would be pretty simple most likely to write a module that does the data submission and retreival, then you could format the HTML before display.  If you are interested in looking at a solution feel free to e-mail me at msellers@iowacomputergurus.com